Question about 2001 Dodge Caravan

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Wiring problem I have a 2001 caravan and having problems with the wiring. I lost my speed odemeter and service engine light came on. I can't drive because it wont shift gears, so tack go to high. I noticed when it first had problems that it would learch and act like it jumped out of gear...a guy looked at it and reset the service light it drove fine for a month then this happened, the code is p1689 for dealer codes which says wiring problem. I need all the help i can get.. thanks js

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  • Marvin
    Marvin May 11, 2010

    that code is for a diesel engine, u must have wrote down the wrong number.

    P1689 (M)

    No Communication Between ECM and Injection Pump Module



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I have a 1999 dodge grand caravan, and I was having the same problem, but not only was I loosing not only the speedometer, but the tachometer as well. the locks were going crazy, lights on the dash flashing on and off. the problem was a fairly simple fix...... All I did was replace the alternator and battery. The alternator was not charging the battery, so there was not enough power getting through the vans computer to tell it (the computer) the right thing to do. I also had the service engine son light on and when this light was on it ran really really rough. Once I replaced the alternator and battery, this fixed all my problems. It's running great now!! Not saying that this will help your problem, but it sounds like the same as what I had going on. Hope this helps you out.

Posted on Feb 09, 2009

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Hi my name is Allen!

To help you I need to know if you have replaced the speed sensor and what engine and trans you have.

For further assistance contact me at FixYa!

Posted on Dec 28, 2008


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